Figure 2

Analyses of N-metabolism genes by RT-PCR. (a-f) Transcript levels of OsAMT1.1, OsAMT2.1, OsAMT3.2, OsNAR2.2, OsNR, and OsNRT2.3 were measured in leaf sheaths sampled from seedlings grown under N-sufficient (N+) or -deficient (N-) conditions. (g-k) Transcript levels of OsAMT2.1, OsNR, OsNRT2.2, OsASN, and OsPEPC were measured in roots sampled from seedlings grown under N+ or N- conditions. Levels were relative amounts against OsUbi expression.